Group tournaments into a single map marker based on position & date (#105)

package.json

@@ -20,11 +20,13 @@
     "@types/react-dom": "18.2.6",
     "@vercel/analytics": "^1.0.1",
     "autoprefixer": "10.4.14",
+    "date-fns": "^2.30.0",
     "jotai": "^2.2.1",
     "leaflet": "^1.9.4",
     "leaflet-defaulticon-compatibility": "^0.1.1",
     "leaflet.markercluster": "^1.5.3",
     "leaflet.smooth_marker_bouncing": "^3.0.3",
+    "lodash": "^4.17.21",
     "mongodb": "^5.7.0",
     "next": "^13.4.7",
     "next-intl": "^3.0.0-beta.7",
@@ -48,6 +50,7 @@
     "@testing-library/react": "^14.0.0",
     "@types/leaflet": "^1.9.3",
     "@types/leaflet.markercluster": "^1.5.1",
+    "@types/lodash": "^4.14.195",
     "@types/nodemailer": "^6.4.8",
     "cypress": "^12.16.0",
     "eslint": "8.43.0",